My brother is doing everything wrong.He blackmails my parents for everything he desires.He stays with bad people and has started behaving like them.He does not study and spends whole day with those people.He has failed in his exams and is still not guilty.He expects my parents to keep on giving him money. We've tried to talk to him about his behaviour but he doesn't listen.He was not like this before.All such changes appeared in him all of a sudden.Sometimes I feel that he might be under some negative influence or under the influence of some spell.Could it be possible?Is there any spell to make him realise his mistake and make him the way he was before?

you can try to do a spell by the coven spell casters and it called: Vanish Negativity. Its in the defense spell category. I hope that helps because you and your family seem to have a lot of negativity in your lives this can help to banish that.